<?php

/**
 * The local connection class for copying files as the httpd user.
 */
class FileTransferLocal extends FileTransfer implements FileTransferChmodInterface {

	function connect() {
		// No-op
	}

	static function factory($jail, $settings) {
		return new FileTransferLocal($jail);
	}

	protected function copyFileJailed($source, $destination) {
		if (@!copy($source, $destination)) {
			throw new FileTransferException('Cannot copy %source to %destination.', NULL, array('%source' => $source, '%destination' => $destination));
		}
	}

	protected function createDirectoryJailed($directory) {
		if (!is_dir($directory) && @!mkdir($directory, 0777, TRUE)) {
			throw new FileTransferException('Cannot create directory %directory.', NULL, array('%directory' => $directory));
		}
	}

	protected function removeDirectoryJailed($directory) {
		if (!is_dir($directory)) {
			// Programmer error assertion, not something we expect users to see.
			throw new FileTransferException('removeDirectoryJailed() called with a path (%directory) that is not a directory.', NULL, array('%directory' => $directory));
		}
		foreach (new RecursiveIteratorIterator(new SkipDotsRecursiveDirectoryIterator($directory), RecursiveIteratorIterator::CHILD_FIRST) as $filename => $file) {
			if ($file->isDir()) {
				if (@!drupal_rmdir($filename)) {
					throw new FileTransferException('Cannot remove directory %directory.', NULL, array('%directory' => $filename));
				}
			}
			elseif ($file->isFile()) {
				if (@!drupal_unlink($filename)) {
					throw new FileTransferException('Cannot remove file %file.', NULL, array('%file' => $filename));
				}
			}
		}
		if (@!drupal_rmdir($directory)) {
			throw new FileTransferException('Cannot remove directory %directory.', NULL, array('%directory' => $directory));
		}
	}

	protected function removeFileJailed($file) {
		if (@!drupal_unlink($file)) {
			throw new FileTransferException('Cannot remove file %file.', NULL, array('%file' => $file));
		}
	}

	public function isDirectory($path) {
		return is_dir($path);
	}

	public function isFile($path) {
		return is_file($path);
	}

	public function chmodJailed($path, $mode, $recursive) {
		if ($recursive && is_dir($path)) {
			foreach (new RecursiveIteratorIterator(new SkipDotsRecursiveDirectoryIterator($path), RecursiveIteratorIterator::SELF_FIRST) as $filename => $file) {
				if (@!chmod($filename, $mode)) {
					throw new FileTransferException('Cannot chmod %path.', NULL, array('%path' => $filename));
				}
			}
		}
		elseif (@!chmod($path, $mode)) {
			throw new FileTransferException('Cannot chmod %path.', NULL, array('%path' => $path));
		}
	}
}
